在Excel文件中读取Apache POI XSSF

时间：2011-05-12 22:38:36

标签： java apache excel apache-poi xssf

我刚才有一个关于如何使用Apache的XSSF格式读取xlsx文件的快速问题。

现在我的代码看起来像这样：

InputStream fs = new FileInputStream(filename);   // (1)
XSSFWorkbook wb = new XSSFWorkbook(fs);           // (2)
XSSFSheet sheet = wb.getSheetAt(0);               // (3)

...导入所有相关内容。我的问题是，当我点击运行时，它会陷入第（2）行，几乎是无限循环。 filename只是一个字符串。

如果有人能给我一些关于如何解决这个问题的示例代码，我会非常感激。我现在想要的只是从xlsx文件中读取单个单元格;我使用HSSF用于xls文件并且没有问题。

感谢您的帮助， 安德鲁

8 个答案:

答案 0 :(得分：9)

InputStream inp = null;
        try {
            inp = new FileInputStream("E:/sample_poi.xls");

            Workbook wb = WorkbookFactory.create(inp);
            Sheet sheet = wb.getSheetAt(0);
            Header header = sheet.getHeader();

            int rowsCount = sheet.getLastRowNum();
            System.out.println("Total Number of Rows: " + (rowsCount + 1));
            for (int i = 0; i <= rowsCount; i++) {
                Row row = sheet.getRow(i);
                int colCounts = row.getLastCellNum();
                System.out.println("Total Number of Cols: " + colCounts);
                for (int j = 0; j < colCounts; j++) {
                    Cell cell = row.getCell(j);
                    System.out.println("[" + i + "," + j + "]=" + cell.getStringCellValue());
                }
            }

        } catch (Exception ex) {
            java.util.logging.Logger.getLogger(FieldController.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            try {
                inp.close();
            } catch (IOException ex) {
                java.util.logging.Logger.getLogger(FieldController.class.getName()).log(Level.SEVERE, null, ex);
            }
        }

答案 1 :(得分：8)

我相信这会回答你的问题：http://poi.apache.org/spreadsheet/quick-guide.html#ReadWriteWorkbook

简而言之，您的代码应如下所示：

InputStream inp = new FileInputStream("workbook.xlsx");
Workbook wb = WorkbookFactory.create(inp);
Sheet sheet = wb.getSheetAt(0);
Row row = sheet.getRow(2);
Cell cell = row.getCell(3);

答案 2 :(得分：3)

为什么要将文件分成InputStream？ XSSFWorkbook有一个构造函数，它只是将路径作为String。只需对字符串的路径进行硬编码。一旦创建了工作簿，就可以从中创建XSSFS表。然后XSSFCells，它最终将允许您读取单个单元格的内容（单元格基于x，y位置，基本上）

答案 3 :(得分：1)

您可以尝试以下操作。 

private static void readXLSX(String path) throws IOException {
    File myFile = new File(path);
    FileInputStream fis = new FileInputStream(myFile);

    // Finds the workbook instance for XLSX file
    XSSFWorkbook myWorkBook = new XSSFWorkbook (fis);

    // Return first sheet from the XLSX workbook
    XSSFSheet mySheet = myWorkBook.getSheetAt(0);

    // Get iterator to all the rows in current sheet
    Iterator<Row> rowIterator = mySheet.iterator();

    // Traversing over each row of XLSX file
    while (rowIterator.hasNext()) {
        Row row = rowIterator.next();

        // For each row, iterate through each columns
        Iterator<Cell> cellIterator = row.cellIterator();
        while (cellIterator.hasNext()) {

            Cell cell = cellIterator.next();

            switch (cell.getCellType()) {
            case Cell.CELL_TYPE_STRING:
                System.out.print(cell.getStringCellValue() + "\t");
                break;
            case Cell.CELL_TYPE_NUMERIC:
                System.out.print(cell.getNumericCellValue() + "\t");
                break;
            case Cell.CELL_TYPE_BOOLEAN:
                System.out.print(cell.getBooleanCellValue() + "\t");
                break;
            default :

            }
        }
        System.out.println("");
    }
}

答案 4 :(得分：0)

这很好用：试试吧

!ENTRY org.eclipse.core.jobs 4 2 2016-05-27 15:42:26.837
!MESSAGE An internal error occurred during: "Compute launch button tooltip".
!STACK 0
java.lang.NoSuchMethodError: org.eclipse.jdt.internal.compiler.env.NameEnvironmentAnswer.<init>([Lorg/eclipse/jdt/internal/compiler/env/ISourceType;Lorg/eclipse/jdt/internal/compiler/env/AccessRestriction;)V
    at org.eclipse.ajdt.core.codeconversion.ITDAwareNameEnvironment.find(ITDAwareNameEnvironment.java:115)
    at org.eclipse.jdt.internal.core.SearchableEnvironment.findType(SearchableEnvironment.java:305)
    at org.eclipse.jdt.internal.core.CancelableNameEnvironment.findType(CancelableNameEnvironment.java:45)
    at org.eclipse.jdt.internal.compiler.lookup.LookupEnvironment.askForType(LookupEnvironment.java:174)
    at org.eclipse.jdt.internal.compiler.lookup.PackageBinding.getTypeOrPackage(PackageBinding.java:214)
    at org.eclipse.jdt.internal.compiler.lookup.Scope.getTypeOrPackage(Scope.java:3228)
    at org.eclipse.jdt.internal.compiler.lookup.Scope.getType(Scope.java:2940)
    at org.eclipse.jdt.internal.compiler.ast.SingleTypeReference.getTypeBinding(SingleTypeReference.java:51)
    at org.eclipse.jdt.internal.compiler.ast.TypeReference.internalResolveType(TypeReference.java:495)
    at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:586)
    at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveTypeArgument(TypeReference.java:598)
    at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveLeafType(ParameterizedSingleTypeReference.java:254)
    at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.internalResolveType(ParameterizedSingleTypeReference.java:165)
    at org.eclipse.jdt.internal.compiler.ast.ParameterizedSingleTypeReference.resolveType(ParameterizedSingleTypeReference.java:378)
    at org.eclipse.jdt.internal.compiler.ast.TypeReference.resolveType(TypeReference.java:582)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.resolveTypeFor(SourceTypeBinding.java:1759)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.fields(SourceTypeBinding.java:934)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.internalFaultInTypeForFieldsAndMethods(SourceTypeBinding.java:903)
    at org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding.faultInTypesForFieldsAndMethods(SourceTypeBinding.java:899)
    at org.eclipse.jdt.internal.compiler.lookup.CompilationUnitScope.faultInTypes(CompilationUnitScope.java:448)
    at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:827)
    at org.eclipse.jdt.internal.core.hierarchy.HierarchyResolver.resolve(HierarchyResolver.java:628)
    at org.eclipse.jdt.internal.core.hierarchy.HierarchyBuilder.buildSupertypes(HierarchyBuilder.java:116)
    at org.eclipse.jdt.internal.core.hierarchy.IndexBasedHierarchyBuilder.build(IndexBasedHierarchyBuilder.java:151)
    at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.compute(TypeHierarchy.java:315)
    at org.eclipse.jdt.internal.core.hierarchy.TypeHierarchy.refresh(TypeHierarchy.java:1286)
    at org.eclipse.jdt.internal.core.CreateTypeHierarchyOperation.executeOperation(CreateTypeHierarchyOperation.java:90)
    at org.eclipse.jdt.internal.core.JavaModelOperation.run(JavaModelOperation.java:724)
    at org.eclipse.jdt.internal.core.JavaModelOperation.runOperation(JavaModelOperation.java:790)
    at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:743)
    at org.eclipse.jdt.internal.core.SourceType.newSupertypeHierarchy(SourceType.java:695)
    at org.eclipse.jdt.internal.launching.JavaLaunchableTester.hasSuperclass(JavaLaunchableTester.java:467)
    at org.eclipse.jdt.internal.launching.JavaLaunchableTester.test(JavaLaunchableTester.java:611)
    at org.eclipse.core.internal.expressions.Property.test(Property.java:58)
    at org.eclipse.core.internal.expressions.TestExpression.evaluate(TestExpression.java:100)
    at org.eclipse.core.internal.expressions.CompositeExpression.evaluateOr(CompositeExpression.java:68)
    at org.eclipse.core.internal.expressions.OrExpression.evaluate(OrExpression.java:22)
    at org.eclipse.core.internal.expressions.CompositeExpression.evaluateAnd(CompositeExpression.java:53)
    at org.eclipse.core.internal.expressions.AndExpression.evaluate(AndExpression.java:31)
    at org.eclipse.core.internal.expressions.CompositeExpression.evaluateAnd(CompositeExpression.java:53)
    at org.eclipse.core.internal.expressions.IterateExpression.evaluate(IterateExpression.java:160)
    at org.eclipse.core.internal.expressions.CompositeExpression.evaluateAnd(CompositeExpression.java:53)
    at org.eclipse.core.internal.expressions.WithExpression.evaluate(WithExpression.java:75)
    at org.eclipse.core.internal.expressions.CompositeExpression.evaluateAnd(CompositeExpression.java:53)
    at org.eclipse.core.internal.expressions.EnablementExpression.evaluate(EnablementExpression.java:55)
    at org.eclipse.debug.internal.ui.launchConfigurations.LaunchShortcutExtension.evalEnablementExpression(LaunchShortcutExtension.java:281)
    at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.getShortcutsForSelection(LaunchingResourceManager.java:454)
    at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager.computeLabels(LaunchingResourceManager.java:240)
    at org.eclipse.debug.internal.ui.contextlaunching.LaunchingResourceManager$1$1.run(LaunchingResourceManager.java:142)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

答案 5 :(得分：0)

public class ExcelReader{
   public String path;
   public static FileInputStream fis;

   public ExcelReader(){
      System.out.println("hello");
   }

   public ExcelReader(String path){
      this.path=path;
      fis=new FileInputStream(path);
      XSSFWorkbook workbook=new XSSFWorkbook(fis);
      XSSFSheet sheet=workbook.getSheet("Sheet1");//name of the sheet
      System.out.println(sheet.getSheetName());
      System.out.println(sheet.getLastRowNum());
      System.out.println(sheet.getRow(2).getCell(3));
  }
  public static void main(String[] args) throws IOException {
      ExcelReader excel=new ExcelReader("path of xlsx");
  }
}

答案 6 :(得分：0)

我有同样的错误，我刚刚用相同的版本更新了pom依赖项。奏效了。

        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi</artifactId>
            <version>4.1.0</version>
        </dependency>
        <!-- https://mvnrepository.com/artifact/org.apache.poi/poi-ooxml -->
        <dependency>
            <groupId>org.apache.poi</groupId>
            <artifactId>poi-ooxml</artifactId>
            <version>4.1.0</version>
        </dependency>

答案 7 :(得分：0)

// Load sheet- Here we are loading first sheet only
XSSFSheet xlSheet = wb.getSheetAt(0);

这里的代码只能识别第一张纸-在我的Excel中有多张纸，因此面临着将sheet2更改为sheet1(getSheetAt(0)) ...的问题...

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